The winches wre constructed and installed on the "Naftilos" oceanic research boat. They are indepedent, electrohydraulic and they carry a drum with a special steel wire. Attached at the end of the wire are the CTD and  SSS/SBP research appliances. The length of the CTD steel wire is 3000 meters and of the SSS/SBP steel wire 2000 meters. The maximum pulling ability of the winches is 30.000 N.
2 Hydraulic independent researching winches for the measurement of underwater parameters.